Short circuiting/earthing

U will need to elaborate more ,what do you mean by giving way of one of the connections, at the traffo outlet terminal. and one of the earthing terminal got cut ? which point ,is it after the short circuit or before.

The distribution board has an incommer and several outlets and ofcourse the earthing connections .

If the incommer has got loose and come out and touched the DB housing and there was no earthing on the board than that is a dangerous situation,definetly someone is not doing maintenance of your electricals

By your name i Could guess you are from south India.

kindly indicate you location.

Please elaborate your postings.

If you are in multi storey buildings there will be centralised transformer in the premises and it should be maintained by C certificate qualified Supervisor.

If the transformer is not located in your prmises you will get the LT supply from the utility supplier.

I do not think any shortcircuit, if so the incoming fuse would have blown.

May be there is a wire cut on the incoming supply or earthing connection would have given away.

More light can be thrown on this issue if proper/elaborate input is given